Wrench



J. E. BONNETT.

WRENCH.

APPLICATlON FILED Aua.24,192o.

Patented June 14, 1921.

0a jj a/m gy OFFICE;

1 JOE E. BONNETT, 0F TROY, WEST VIRGINIA.

'wanucn.

Specification of Letters Patent. Patented J ne 14 1921 Application filed August 24, 1920. Serial No. 405,692.

r "T 0 all whom it may concern Be it known that I, Jon E. BQNNETT, a citizen ofthe United States, residin at Troy. in the county of Gilmer and tate of lVest Virginia, have invented certain new and useful Improvements inWrenches,

of which the following is a specification.

This invention relates to wrenches of the type known as general purpose wrenches and to the class in which the movable jaw is adjusted by the rotation of the handle.

The object of the invention is to so construct a wrench of this character that .it may be used in dirty, sandy, muddy places without'efl'ect by said elements on the adjusting and operating parts of the wrench, said parts being completely protected against such elements and the weather.

Another object is to provide a clean smooth body and handle having no corners or projections such as would inconvenience the user.

With these and other objects in view, the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claim and in the drawings illustrative of the preferred embodiment of the invention.

In the accompanying drawing:

Figure 1 is a longitudinal section partly in side elevation of a wrench embodying this invention.

Fig. 2 is a transverse section taken on the line 22 of Fig. 1, and,

Fig. 3 is a similar view taken on the line 3-3 of Fig. 1.

In the embodiment illustrated the wrench constituting this invention comprises a hollow shank 1 polygonal in cross section on its interior and carrying at one end a fixed integral jaw 2 while on its other end is detachably mounted a handle 3.

. handle 3 has a collar or nut 4 arranged between its inner end and the outer end of a collar 5 said collar 5 having an internally threaded sleeve or skirt 5 which has threaded engagement with the reduced outer end or neck 1 of the shank 1 as is shown clearly in Fig. 1. These parts when assembled preferably have their outer faces flush with each other to form an unobstructed body and handle. At the inner end. of neck 1 is a shoulder 1 designed for a purpose hereinafter to be described.

A movable jaw 6 designed for o6pera- This.

tion with the jaw 2 has a hollow internally relativelythereto. This hollow stem 7Bis of a length substantially equalto the length of the bore of shank l andwhen the jaws are in closed position the free end of this stem terminates adjacent theshoulder 1 of shank l as is shown clearly in Fig. 1.

A combined jaw adjusting screw and handle stem 8 has threaded engagement with the bore of the hollow stem 7 and the intermediate portion of this member is unthreaded and provided with an annular flange 10, the portion between said flange and the screw threaded portion being designed to rotate in the neck 1 of the shank 1 while the inner face of the flange 10 abuts against the end of said neck and at its opposed face is engaged by the collar 5 being held thereby against longitudinal movement and yet permitted to rotate so that the turning; thereof will operate to open and close jaw 6.

The member 8 tapers toward its rear end from flange 10 and said tapered portion 12 extends through the handle 3 and has secured to its outer end, shown threaded at 13. a nut 14. The nut 4 is engaged with a threaded portion 11 of the member 8 as is shown clearly in Fig. 1 and said nut cooperating with the nut 14 securely clamps the handle 3 to the member 8 so that when said handle is turned the member 8 will turn with it for actuating the jaw 6.

The fixed jaw 2 preferably has mounted on its clamping face a removable pipe and rod jaw 15 held in operative positlon on the jaw 2 by a removable pin 16. The movable jaw 6 has its clamping face recessed as shown at 17, said recess being positioned over the pipe jaw 15 and is designed to cooperate therewith for clamping securely a pipe or rod. As shown the recess 17 is V-shaped and the jaw 15 has its biting face serrated and inclined downwardly and inwardly to adapt it to more securely engage the p pe to e p d.

or other purposes.

The preferred embodiment ofthe invention is disclosed in the drawings and set forth in the specification, but it will be understood that any modifications within the scope of the claim may be made in the construction without departing from the principle of the invention or sacrificing any OfltS advantages.

WVhat I claim is: i

In a wrench of the class described, a hollow shank comprising a body having a fixed jaw at one end and a reduced exter- ..,nally threaded neck at its other end, the

bore of said shank body being polygonal in cross sections and that of the neck cir- V cular with a shoulder at the junction of said bore, a stem mounted to slide in said shank the cross section thereof conforming to that of the bore of said shank, said stem being provided with a jaw at one end to cooperate with the jaw on said shank and having a thread'ed bore closed at its jaw carrying end and opening through its other end, a combined jaw adjusting screw and handle stem having a portion at one end threaded to adjustablyengage 'theebore of said hollow stem and an 'unthreaded portionmounted to rotate in said neck and equipped with an annular flange positioned to abut the rear end of said neck, a collar encircling said handle stem at the rear of said flange, encompassing said flange and provided with a sleeve having threaded en- 7 gagement with said neck, and a handle secured tothe rear end of said handle stem and connectedso that the rotation of the handle will turn the stem and thereby adjust the movable jaw, said adjusting screw and handle shaft'being completely housed throughout,itsfentire length as well as the parts cooperating therewith.

In testimony whereof, I aflix my signature hereto.

JOE E. BONNETT. 

